CN111736068A - Intelligent detection method and system for medium-voltage distribution board - Google Patents
Intelligent detection method and system for medium-voltage distribution board Download PDFInfo
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- 238000012360 testing method Methods 0.000 claims abstract description 123
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- 238000005259 measurement Methods 0.000 claims description 25
- 238000004883 computer application Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 20
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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Abstract
The invention discloses an intelligent detection method and system for a medium voltage distribution board, wherein the method comprises the following steps: determining the detection content of each maintenance program of the medium voltage distribution board and programming the detection content; testing step by step according to a programmed program, and testing in a mode of combining voice prompt and manual work to finish the performance detection of the medium-voltage circuit breaker; and testing step by step according to a programmed program in a mode of combining voice prompt and manual work to finish the detection of the medium voltage distribution board bin. The invention not only improves the detection efficiency of the medium voltage distribution board, but also reduces the labor intensity of technical personnel, reduces the detection risk of personnel and equipment, is suitable for popularization and application, and is particularly suitable for the detection of the medium voltage distribution board in certain important power supply and distribution environments such as urban rail transit, high-speed rail, nuclear power and other industries.
Description
Technical Field
The invention relates to the technical field of medium voltage distribution board detection, in particular to an intelligent detection method and system for a medium voltage distribution board.
Background
At present, 10KV medium-voltage distribution boards used in domestic industry are mainly mid-set distribution boards, wherein the distribution boards comprise multiple models, namely, ZS-SG of Schneider MVnex HP and ABB, and ZN 28-12(10) of domestic model, which are all called as medium-voltage mid-set cabinets, and the medium-voltage mid-set cabinets mainly comprise a primary circuit and a secondary circuit, wherein a medium-voltage circuit breaker is an important primary circuit component of the medium-voltage distribution board, the medium-voltage distribution board can work normally, the circuit breaker plays a vital role, and a relay microcomputer comprehensive protection device is an important core part of the secondary circuit, so that current, voltage, zero sequence, grounding and other protection of the medium-voltage circuit are realized through the relay microcomputer comprehensive protection device.
In some important production links, in order to ensure smooth production, the stability of the performance of the medium voltage distribution board plays a crucial role, and therefore, many industries make maintenance periods and maintenance outlines of the distribution cabinet. No matter what kind of maintenance scheme is adopted, the tools that adopt are mostly the same, including relay protection check gauge, universal meter, electric current source, voltage source, mechanical properties tester, insulation resistance tester etc. according to the content difference of testing, use different instrument and meter. At present, people have to adopt a manual testing method and a step-by-step implementation scheme to complete the testing content for the overhaul of the medium voltage distribution panel. The detection mode has the advantages of high detection efficiency, high labor intensity of technicians and high risk, and the existing detection mode of the medium-voltage distribution board is more inconvenient, complex in maintenance process and higher in risk in certain important power supply and distribution environments such as urban rail transit, high-speed rail, nuclear power and other industries.
The above problems are urgently needed to be solved.
Disclosure of Invention
The invention aims to solve the problems mentioned in the background of the invention by providing an intelligent detection method and system for a medium voltage distribution board.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides an intelligent detection method for a medium voltage distribution board, where the method includes:
determining the detection content of each maintenance program of the medium voltage distribution board and programming the detection content;
testing step by step according to a programmed program, and testing in a mode of combining voice prompt and manual work to finish the performance detection of the medium-voltage circuit breaker;
and testing step by step according to a programmed program in a mode of combining voice prompt and manual work to finish the detection of the medium voltage distribution board bin.
In particular, the performance detection of the medium-voltage circuit breaker includes but is not limited to main loop insulation performance detection, main loop resistance detection, circuit breaker switch mechanical performance detection, opening and closing coil resistance value measurement, secondary loop auxiliary contact measurement, secondary opening and closing coil, holding coil direct resistance measurement and secondary loop insulation measurement.
In particular, said step-by-step testing according to a programmed program, which completes the performance test of the medium voltage circuit breaker, comprises: according to a fixed contact matched with the circuit breaker handcart, the fixed contact is respectively connected with a corresponding power supply, current and mechanical characteristic detection according to test contents; and (4) gradually testing according to a programmed program, automatically selecting a testing power supply according to different contents, detecting data and automatically calculating, automatically storing the data, and issuing a testing report.
In particular, said step-by-step testing according to a programmed program, completing a medium voltage switchboard compartment inspection, comprises: each disk cabinet is independently provided with an intelligent test device, test voltage and current supply, switching-on and switching-off commands, feedback signal acquisition and signal data conversion are realized on the disk cabinet through the intelligent test device, data are transmitted to an intelligent online test device host through a communication mode, and distribution, test action commands, test data operation, data storage and test result printing of the test voltage and current are realized by the intelligent online test device host.
In a second aspect, an embodiment of the present invention provides an intelligent detection system for a medium voltage distribution board, the system including a medium voltage circuit breaker detection device; the medium voltage circuit breaker detection device comprises a computer application system, an interface circuit, a power supply system and an integrated circuit; the computer application system is used for being responsible for signal monitoring and control and input and output control of various signal sources; controlling the equipment layer to execute corresponding system operation through a computer program, and recording and storing data; the data of the operation layer is gathered, inquired and analyzed, and a corresponding report is formed; the interface circuit is communicated with the computer application system and is used for realizing the detection of a secondary circuit of the medium-voltage circuit breaker; the power supply system comprises a current source and a voltage source for outputting a corresponding voltage or current and a corresponding time interval by receiving instructions of a computer application system.
Particularly, the power supply system comprises but is not limited to a communication circuit, a rectification circuit of an IGBT, an inverter circuit, a booster circuit, a check circuit and a multi-output expansion circuit.
In particular, the detection contents to be completed by the medium-voltage circuit breaker include, but are not limited to, detection of insulation performance of a main loop, detection of resistance of the main loop, detection of mechanical performance of a circuit breaker switch, measurement of resistance of a switching coil, measurement of auxiliary contact of a secondary loop, measurement of direct resistance of a secondary switching coil and a holding coil, and measurement of insulation of the secondary loop.
In particular, the detection of the mechanical performance of the breaker switch comprises but is not limited to switching-on and switching-off time, three-phase asynchronism and contact bounce.
Particularly, the intelligent detection system for the medium-voltage distribution board further comprises a medium-voltage distribution board bin detection device, each disk cabinet in the medium-voltage distribution board bin detection device is independently provided with an intelligent test device, the intelligent test devices are used for supplying test voltage and current, switching on and switching off commands, feedback signal acquisition and signal data conversion to the disk cabinets, data are transmitted to a host of the intelligent online test device in a communication mode, and distribution of the test voltage and current, test action instructions, test data operation, data storage and test result printing are realized by the host of the intelligent online test device.
In particular, the intelligent online test device host comprises but is not limited to a digital adjustable current voltage source, a control power supply system, a computer application system, a communication interface, a man-machine friendly interface and a printer.
The intelligent detection method and system for the medium-voltage distribution board, provided by the embodiment of the invention, can automatically complete the performance detection of the medium-voltage circuit breaker and the check and detection of the secondary circuit, and can automatically generate a test report. The invention not only improves the detection efficiency of the medium voltage distribution board, but also reduces the labor intensity of technical personnel, reduces the detection risk of personnel and equipment, is suitable for popularization and application, and is particularly suitable for the detection of the medium voltage distribution board in certain important power supply and distribution environments such as urban rail transit, high-speed rail, nuclear power and other industries.
Drawings
Fig. 1 is a schematic flow chart of an intelligent detection method for a medium voltage distribution board according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the intelligent detection system for a medium voltage switchboard, which is provided by the embodiment of the invention, for detecting a medium voltage circuit breaker;
fig. 3 is a schematic structural view of the intelligent detection system for a medium voltage distribution board provided by the embodiment of the invention, which is used for detecting the compartment of the medium voltage distribution board.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example one
Referring to fig. 1, fig. 1 is a schematic flow chart of an intelligent detection method for a medium voltage distribution board according to an embodiment of the present invention. The intelligent detection method for the medium voltage distribution board in the embodiment specifically comprises the following steps:
s101, determining detection contents of each maintenance program of the medium voltage distribution board and programming the detection contents.
And S102, testing step by step according to the programmed program in a mode of combining voice prompt and manual work to finish the performance detection of the medium-voltage circuit breaker.
And S103, gradually testing according to the programmed program, and testing in a mode of combining voice prompt and manual work to finish the detection of the medium voltage distribution board bin.
Specifically, in the method for intelligently detecting a medium voltage distribution board in this embodiment, the medium voltage distribution board is tested in a manner of combining voice, alarm and manual work, and various tests of a detection program are completed. Specifically, in this embodiment, the performance detection of the medium voltage circuit breaker includes, but is not limited to, detection of insulation performance of the main circuit, detection of resistance of the main circuit, detection of mechanical performance of the circuit breaker switch, measurement of resistance of the opening and closing coil, measurement of auxiliary contact of the secondary circuit, measurement of direct resistance of the secondary opening and closing coil and the holding coil, and measurement of insulation of the secondary circuit.
In specific implementation, the following scheme can be adopted: the information exchange between the computer and the relay protection tester and the information exchange between the computer and the relay comprehensive protector are integrated into one software, so that the relay protection tester can read corresponding data from the relay comprehensive protector while controlling the output or input electric quantity by the computer, and perform automatic tests according to programs. All the comprehensive chamber relay protectors of the whole medium-voltage plate are networked in modes of optical fibers, network cables and the like, and information is read one by one when the software is used for realizing a test. The input and output ports required by intelligent overhaul of all chambers of the whole medium-pressure plate are integrated to one position to manufacture a slot plugging mode, and the wires are uniformly connected before the test. The relay protection tester and matched software are designed, and all the chambers can be tested simultaneously. The intelligent maintenance condition after the realization is as follows: 1. insert all chamber test plugs (ports integrated together) before testing; 2. and (3) simultaneously testing all the chambers of the whole middle pressure plate by one key of computer software, and automatically generating test reports of all the chambers.
By adopting the intelligent detection method for the medium voltage distribution board, provided by the embodiment, when the performance of the medium voltage breaker is detected, the test of the medium voltage switch can be completed by one key, test data is issued, the test data is qualified, a report is printed (or an electronic file is formed and can be copied out by a USB (universal serial bus)) and stored in a database, and an annual inspection curve of the data can be formed subsequently. Exemplary, the test content of the medium voltage switch includes: primary section primary insulation measurement (2500 VDC): alternatively, oppositely, and fracture; loop resistance of the primary part; one-time mechanical characteristic inspection (opening and closing time, different phases and bounce); secondary loop auxiliary contact measurement (less than 10 ohms); measuring direct resistance of a secondary opening and closing coil, a holding coil and the like; insulation measurement of the secondary circuit (500 VDC); and (4) other measurements. Such as critical limit contacts, latching coils, etc.
Specifically, in this embodiment, the step-by-step testing according to a programmed program to complete the performance detection of the medium voltage circuit breaker includes: according to a fixed contact matched with the circuit breaker handcart, the fixed contact is respectively connected with a corresponding power supply, current and mechanical characteristic detection according to test contents; and (4) gradually testing according to a programmed program, automatically selecting a testing power supply according to different contents, detecting data and automatically calculating, automatically storing the data, and issuing a testing report. Specifically, in this embodiment, the step-by-step test according to the programmed program to complete the detection of the medium voltage distribution board compartment includes: each disk cabinet is independently provided with an intelligent test device, test voltage and current supply, switching-on and switching-off commands, feedback signal acquisition and signal data conversion are realized on the disk cabinet through the intelligent test device, data are transmitted to an intelligent online test device host through a communication mode, and distribution, test action commands, test data operation, data storage and test result printing of the test voltage and current are realized by the intelligent online test device host.
Illustratively, the intelligent detection method for the medium voltage distribution board provided by the embodiment can be applied to certain important power supply and distribution environments such as the industries of urban rail transit, high-speed rail, nuclear power and the like. When the detection device is applied to the industries of urban rail transit, high-speed rail, nuclear power and the like, different detection programs are compiled according to different power distribution cabinet principles and related drawings in the industries of urban rail transit, high-speed rail, nuclear power and the like to realize the overhaul of the medium-voltage distribution board, so that the detection efficiency of the medium-voltage distribution board is improved, the labor intensity of technicians is reduced, and the detection risks of personnel and equipment are reduced.
Example two
Based on the intelligent detection method for the medium voltage distribution board provided by the first embodiment, the first embodiment provides an intelligent detection system for the medium voltage distribution board, and the system comprises a medium voltage circuit breaker detection device; as shown in fig. 2, the medium voltage circuit breaker detection apparatus includes a computer application system, an interface circuit, a power supply system, an integrated circuit, and a printer.
In the embodiment, the computer application system is used for being responsible for signal monitoring and control and input and output control of various signal sources; controlling the equipment layer to execute corresponding system operation through a computer program, and recording and storing data; the data of the operation layer is gathered, inquired and analyzed, and a corresponding report is formed; the interface circuit is communicated with the computer application system and is used for realizing the detection of a secondary circuit of the medium-voltage circuit breaker; the power supply system comprises a current source and a voltage source for outputting a corresponding voltage or current and a corresponding time interval by receiving instructions of a computer application system. The application system software is realized by fusing C/S and B/S frameworks, the equipment layer and the operation layer are used as field test systems and adopt the C/S frameworks, single machine operation and communication logic control are conveniently realized, and the information layer is used as a display layer and adopts the B/S framework, so that data can be more conveniently transmitted and displayed. The software development language and the database management software consider the requirements of late expansion and data storage technology, and the computer operating system supports Windows 7 and Windows 10. All data of the system is mainly automatically input through various data interfaces, is assisted by manual input, and is ensured to be input only once, and the data enters a database and is completely shared; the principle of data input through the interface can not be changed, and if the data needs to be modified due to data correction, permission limitation is required; the method is characterized in that operations such as manual batch data entry and file batch data import are supported, the batch data entry and import functions are only limited to be used in the initial stage of system establishment, and are limited to be used in the later stage according to the requirements, and the system supports export of files in the EXCEL format. All functions of system software are in accordance with the management mode and various regulations of the current user, all operations of the system must establish operation logs which must not be modified, the operation logs must have the functions of ordinary inquiry, summary inquiry and fuzzy inquiry, and the data volume of the operation logs is increased continuously along with the time, so the fuzzy inquiry function must be satisfied at the same time. The computer application system establishes communication with a power supply and communication with the relay comprehensive protector, realizes the function that the computer completely replaces a relay protection calibrator, compares the value of an output power supply (current or voltage) with the feedback value of the relay comprehensive protector, and realizes overcurrent calibration, low-voltage calibration, no-voltage calibration, ground fault calibration and response time of various faults; establishing a corresponding database according to different checking requirements and test contents, and calculating and comparing the database with data received in the test process to form a corresponding report and automatically print the report; and according to the test steps of the detection program, compiling a corresponding application test program, and realizing a rapid test in a mode of combining voice, alarm and manual work.
Specifically, in this embodiment, the interface circuit employs an integrated circuit, an interface technology and a communication technology, so as to realize detection of a secondary circuit of the medium-voltage circuit breaker, including detection of switching value input and output, and current and voltage, and the interface module communicates with the computer through an MODBUS protocol. Specifically, the power supply system in this embodiment is developed by using power electronics technology and computer control technology, and includes a communication circuit, a rectification circuit of an IGBT, an inverter circuit, a booster circuit, a calibration circuit, a multi-output expansion circuit, and the like. And outputting the corresponding voltage or current and the corresponding time interval by receiving the instruction of the computer. For example, the output voltage may be: 2500VDC, 100A, the output current can be: the precision of 0-50A single-phase current source, current and voltage satisfies the requirement of test.
Specifically, in this embodiment, according to the test procedure of the detection program and the requirement of the user, the detection to be completed by the medium voltage circuit breaker is as follows: the method comprises the following steps of detecting the insulation performance of a main loop, detecting the resistance of the main loop, detecting the mechanical performance of a circuit breaker switch (including but not limited to switching-on and switching-off time, three-phase asynchronism and contact bounce), measuring the resistance of a switching-on and switching-off coil, measuring the auxiliary contact of a secondary loop (for example, the selectable value is less than 10 ohms), and measuring the direct resistance of the secondary switching-on and switching-off coil, a holding coil and the like; insulation measurement of the secondary loop (exemplary, optionally 500 VDC). When the method is used for a specific exercise, a tester logs in an application program, enters an application program interface after authority authentication, selects a corresponding test item through the computer application program interface, and completes each test step in a mode of combining a test platform and personnel participation.
Specifically, in this embodiment, the intelligent detection of the medium voltage distribution board compartment can be realized, as shown in fig. 3, the intelligent detection system of the medium voltage distribution board comprises a detection device of the medium voltage distribution board compartment, and the detection device of the medium voltage distribution board compartment comprises a computer application system, an interface circuit, a power supply system, an integrated circuit, a printer, and the like. During specific implementation, an intelligent test device is designed according to test contents of disk cabinets, each disk cabinet is independently provided with one intelligent test device, the intelligent test devices supply test voltage and current, close and open brake commands, feedback signal acquisition and signal data conversion to the disk cabinets, data are transmitted to an intelligent online test device host in a communication mode, and distribution, test action instructions, test data operation, data storage and test result printing of the test voltage and current are achieved by the intelligent online test device host. The intelligent online test device host comprises a digital adjustable current voltage source, a control power supply system, a computer application system, a communication interface, a man-machine friendly interface, a printer and the like. The intelligent test device host can be in data communication with the central control room, and after online test system software is installed in the central control room, the functions of remote online tests, data management and storage, test report printing and the like can be realized in the central control room. Similar to the detection device of the medium-voltage circuit breaker, the computer application system is used for being responsible for signal monitoring and control and input and output control of various signal sources in the embodiment; controlling the equipment layer to execute corresponding system operation through a computer program, and recording and storing data; the data of the operation layer is gathered, inquired and analyzed, and a corresponding report is formed; the interface circuit is communicated with the computer application system and is used for realizing the detection of a secondary circuit of the medium-voltage circuit breaker; the power supply system comprises a current source and a voltage source for outputting a corresponding voltage or current and a corresponding time interval by receiving instructions of a computer application system. The application system software is realized by fusing C/S and B/S frameworks, the equipment layer and the operation layer are used as field test systems and adopt the C/S frameworks, single machine operation and communication logic control are conveniently realized, and the information layer is used as a display layer and adopts the B/S framework, so that data can be more conveniently transmitted and displayed. The software development language and the database management software consider the requirements of late expansion and data storage technology, and the computer operating system supports Windows 7 and Windows 10. All data of the system is mainly automatically input through various data interfaces, is assisted by manual input, and is ensured to be input only once, and the data enters a database and is completely shared; the principle of data input through the interface can not be changed, and if the data needs to be modified due to data correction, permission limitation is required; the method is characterized in that operations such as manual batch data entry and file batch data import are supported, the batch data entry and import functions are only limited to be used in the initial stage of system establishment, and are limited to be used in the later stage according to the requirements, and the system supports export of files in the EXCEL format. All functions of system software are in accordance with the management mode and various regulations of the current user, all operations of the system must establish operation logs which must not be modified, the operation logs must have the functions of ordinary inquiry, summary inquiry and fuzzy inquiry, and the data volume of the operation logs is increased continuously along with the time, so the fuzzy inquiry function must be satisfied at the same time. The computer application system establishes communication with a power supply and communication with the relay comprehensive protector, realizes the function that the computer completely replaces a relay protection calibrator, compares the value of an output power supply (current or voltage) with the feedback value of the relay comprehensive protector, and realizes overcurrent calibration, low-voltage calibration, no-voltage calibration, ground fault calibration and response time of various faults; establishing a corresponding database according to different checking requirements and test contents, and calculating and comparing the database with data received in the test process to form a corresponding report and automatically print the report; and according to the test steps of the detection program, compiling a corresponding application test program, and realizing a rapid test in a mode of combining voice, alarm and manual work. In addition, the interface circuit, the power system, the integrated circuit and the medium voltage circuit breaker detection device are the same, and are not described herein again.
The technical scheme provided by the embodiment of the invention improves the detection efficiency of the medium voltage distribution board, reduces the labor intensity of technical personnel, reduces the detection risk of personnel and equipment, is suitable for popularization and application, and is particularly suitable for the detection of the medium voltage distribution board in certain important power supply and distribution environments such as urban rail transit, high-speed rail, nuclear power and other industries.
It will be understood by those skilled in the art that all or part of the above embodiments may be implemented by the computer program to instruct the relevant hardware, and the program may be stored in a computer readable storage medium, and when executed, may include the procedures of the embodiments of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An intelligent detection method for a medium voltage switchboard, characterized in that the method comprises the following steps:
determining the detection content of each maintenance program of the medium voltage distribution board and programming the detection content;
testing step by step according to a programmed program, and testing in a mode of combining voice prompt and manual work to finish the performance detection of the medium-voltage circuit breaker;
and testing step by step according to a programmed program in a mode of combining voice prompt and manual work to finish the detection of the medium voltage distribution board bin.
2. The intelligent detection method for a medium voltage distribution board according to claim 1, wherein the performance detection of the medium voltage circuit breaker includes, but is not limited to, main circuit insulation performance detection, main circuit resistance detection, circuit breaker switch mechanical performance detection, opening and closing coil resistance measurement, secondary circuit auxiliary contact measurement, secondary opening and closing coil, holding coil direct resistance measurement, and secondary circuit insulation measurement.
3. The intelligent detection method for a medium voltage switchboard according to claim 1, characterized in that said step-by-step tests according to programmed programs, completing the performance detection of the medium voltage circuit breakers, comprise: according to a fixed contact matched with the circuit breaker handcart, the fixed contact is respectively connected with a corresponding power supply, current and mechanical characteristic detection according to test contents; and (4) gradually testing according to a programmed program, automatically selecting a testing power supply according to different contents, detecting data and automatically calculating, automatically storing the data, and issuing a testing report.
4. The medium voltage switchboard intelligent detection method according to one of claims 1 to 3, characterized in that said step-by-step testing according to a programmed program, completing medium voltage switchboard compartment detection, comprises: each disk cabinet is independently provided with an intelligent test device, test voltage and current supply, switching-on and switching-off commands, feedback signal acquisition and signal data conversion are realized on the disk cabinet through the intelligent test device, data are transmitted to an intelligent online test device host through a communication mode, and distribution, test action commands, test data operation, data storage and test result printing of the test voltage and current are realized by the intelligent online test device host.
5. An intelligent detection system for medium voltage switchboard is characterized in that the system comprises a medium voltage breaker detection device; the medium voltage circuit breaker detection device comprises a computer application system, an interface circuit, a power supply system and an integrated circuit; the computer application system is used for being responsible for signal monitoring and control and input and output control of various signal sources; controlling the equipment layer to execute corresponding system operation through a computer program, and recording and storing data; the data of the operation layer is gathered, inquired and analyzed, and a corresponding report is formed; the interface circuit is communicated with the computer application system and is used for realizing the detection of a secondary circuit of the medium-voltage circuit breaker; the power supply system comprises a current source and a voltage source for outputting a corresponding voltage or current and a corresponding time interval by receiving instructions of a computer application system.
6. The intelligent detection system for medium voltage distribution boards according to claim 5, wherein the power supply system includes but is not limited to communication circuits, rectification circuits of IGBTs, inverter circuits, boost circuits, check circuits, and multi-output extension circuits.
7. The intelligent detection system for medium voltage distribution board according to claim 6, wherein the detection contents to be completed by the medium voltage circuit breaker include, but are not limited to, detection of insulation performance of the primary circuit, detection of resistance of the primary circuit, detection of mechanical performance of the circuit breaker switch, measurement of resistance of the opening and closing coil, measurement of auxiliary contact of the secondary circuit, measurement of direct resistance of the secondary opening and closing coil and the holding coil, and measurement of insulation of the secondary circuit.
8. The medium voltage panel intelligent detection system of claim 7, wherein the breaker switch mechanical performance detection includes, but is not limited to, closing and opening time, three phase asynchrony, contact bounce.
9. The intelligent detection system for the medium voltage distribution board according to one of claims 5 to 8, further comprising a medium voltage distribution board chamber detection device, wherein each disk cabinet in the medium voltage distribution board chamber detection device is individually configured with an intelligent test device, the intelligent test device is used for realizing test voltage and current supply, switching on and switching off commands, feedback signal acquisition and signal data conversion for the disk cabinets, transmitting data to the intelligent online test device host through a communication mode, and realizing distribution of test voltage and current, test action commands, test data operation, data storage and test result printing by the intelligent online test device host.
10. The intelligent detection system for medium voltage distribution board according to claim 9, wherein the intelligent online test device host includes but is not limited to a digital adjustable current voltage source, a control power system, a computer application system, a communication interface, a human-machine friendly interface and a printer.
Priority Applications (1)
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Cited By (7)
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| CN112398220A (en) * | 2020-10-30 | 2021-02-23 | 无锡中科电气设备有限公司 | Integrated intelligent testing device for medium-voltage switch of nuclear power station |
| CN112462250A (en) * | 2020-11-13 | 2021-03-09 | 无锡中科电气设备有限公司 | Switching characteristic comprehensive test device |
| CN112462142A (en) * | 2020-11-13 | 2021-03-09 | 无锡中科电气设备有限公司 | Insulation resistance testing device |
| CN112462165A (en) * | 2020-10-30 | 2021-03-09 | 深圳市合众清洁能源研究院 | Visual test method and platform for electrical circuit of medium-low voltage panel cabinet |
| CN112462164A (en) * | 2020-10-30 | 2021-03-09 | 深圳市合众清洁能源研究院 | Intelligent test system of well low-voltage plate cabinet |
| CN112505420A (en) * | 2020-11-13 | 2021-03-16 | 武汉瑞莱保科技有限公司 | Intelligent test analysis system for distribution board |
| CN113671324A (en) * | 2021-08-13 | 2021-11-19 | 中广核核电运营有限公司 | Automatic testing device for testing performance of medium-low voltage distribution board and testing method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112398220A (en) * | 2020-10-30 | 2021-02-23 | 无锡中科电气设备有限公司 | Integrated intelligent testing device for medium-voltage switch of nuclear power station |
| CN112462165A (en) * | 2020-10-30 | 2021-03-09 | 深圳市合众清洁能源研究院 | Visual test method and platform for electrical circuit of medium-low voltage panel cabinet |
| CN112462164A (en) * | 2020-10-30 | 2021-03-09 | 深圳市合众清洁能源研究院 | Intelligent test system of well low-voltage plate cabinet |
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| CN112462142A (en) * | 2020-11-13 | 2021-03-09 | 无锡中科电气设备有限公司 | Insulation resistance testing device |
| CN112505420A (en) * | 2020-11-13 | 2021-03-16 | 武汉瑞莱保科技有限公司 | Intelligent test analysis system for distribution board |
| CN113671324A (en) * | 2021-08-13 | 2021-11-19 | 中广核核电运营有限公司 | Automatic testing device for testing performance of medium-low voltage distribution board and testing method thereof |
| CN113671324B (en) * | 2021-08-13 | 2023-11-24 | 中广核核电运营有限公司 | Automatic testing device and method for testing performance of medium-low voltage distribution board |
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